MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to domains that appear to be part of a link farm designed to redirect users to malicious sites. Heuristics indicate the PDF is a link farm on disposable hosting, and ML classifiers and ClamAV strongly flag it as malicious, likely phishing or a trojan. The presence of embedded URLs and the link farm structure suggests an attempt to lure users to phishing or malware distribution sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://chcial.ru/uplcv?utm_term=how+to+install+google+bar+on+android
- http://cassotech.nl/site/data/ws/files/xazesaxomibonibupuwipa.pdf
- https://natatourism.com/userfiles/files/jokifapasoxurag.pdf
- http://nesemlak.com/test/images/uploads/files/71000642821.pdf
- http://dataction.org/demo/dataction/media/lekofujumufani.pdf
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/mugapej.pdf
- http://kreativitaet-stadlhofer.at/global/images/userfiles/file/tomedizineb.pdf
- https://rougezenekar.hu/files/file/27710486754.pdf
- https://adepotcustom.com/UploadFiles/file/20210907105059143.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/7rb2sp9lbp2emj73e10gnsf5ha/28323693081.pdf
- http://henzefashion.com/userfiles/file/6790241173.pdf
- http://angelofthewinds.org/ckfinder/userfiles/files/14710982226.pdf
- https://ngonluathan.com/images/ckeditor/files/9194005564.pdf
- http://pvvc.cz/files/kokawevelu.pdf
- http://russia-ex.com/images/blog/file/9150237531.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613842b2ec663---66716998771.pdf
- http://vetportonaccio.it/userfiles/files/nifofaf.pdf
- http://kargo-box.com/uploads/files/39054817727.pdf
- http://ichieh.tw/uploads/files/202109080425288532.pdf
- https://vr-spagna-20.effievirtual.com/galeria/files/92680503425.pdf
- https://sportsht.com/userfiles/file/dumosovivepebakumojuxotof.pdf
- http://ampletrekking.com/userfiles/file/30833182226.pdf
- https://kibledergisi.net/resimler/files/raxanopapuridividodeguj.pdf
- http://czyxchem.com/upload/files/47966096415.pdf
- https://alves.bg/ckfinder/userfiles/files/94121352317.pdf
- http://www.ks-klinika.ru/ckfinder/userfiles/files/99205512146.pdf
- http://www.thaiticketmajor.com/static/imgUpload/files/23428985077.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c526.bin11870e4ef0e8869662348f89c864311c630b9640f524566d5186ffb829aa3942 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC526 | 17952 bytes |
font_01_sfnt_off0000f41e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF41E | 16792 bytes |
font_02_sfnt_off00010c35.bin8cbb07b79ef765c28ab1ce4598280edee66a5e345fcc8ab4e64a2a451bccbe4e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C35 | 10640 bytes |
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